A father confronts the "matched fate" led by a postcard! In 2018, Togawa Togawa works as an elementary school teacher in a certain town in Chiba Prefecture. A good “ordinary” father who takes care of his family. He celebrated his eldest son Aio's discharge from the hospital at his new home with his wife Koharu, and enjoyed small but warm happiness. But one day, a postcard is delivered to him. The postcard transforms his "ordinary" daily life into something unreasonable... Disappearing things are just disappearing, right? The story of confronting "meeting fate" drawn by the author of "A town where I am not the only one" opens! !